Lifting-rod and bushing for ring-spinning frames.



w. E. e. ROBINSON at 1. P. momev. LIFTING ROD AND BUSHING FORRING SPINNING FRAMES.

' APPLICATION FILED JUNE 9.19:1.

Patented Apr. 23, 1918.

nnnnnnnnnnnnnnnnnnnn M WILLIAM E. Gr. ROBINSON AND JAMES P. TOOMEY, F CHARLOTTE, NORTH CAROLINA.

LI ETING-ROD AND BUSHING FOR RING-SPINNING FRAMES.

Patented Apr. 23, 191%.

Application filedJ'nne e, 1917. Serial no; 173,874. p

To all whom it may concern: 7

Be it known that we, WILLIAM E. G. Roe INSON and'JAMEs P. TooMnY, citizens of the United States, residing at Charlotte, in the county of Mecklenburg, State of North Carolina, have invented certain new and useful Improvements in Lifting-Rods and Bushlugs for Ring-Spinning Frames, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to improvements in lifting rods and bolsters for use on ringspinning frames and twisters.

The objects of the invention are to so construct the lifting rod and its bolster that friction between them will be materially lessened, sticking of the rod in the bolster prevented and free passage of lint through the bolster permitted.

These objects are accomplished by the construction shown in the accompanying drawing in which- Figure 1 is a sectional elevation of a portion of a ring-spinning frame with our improved lifting-rod and bushing applied.

Fig. 2 is a side elevation of the liftingrod and its bushing.

Fig. 3 is a perspective of the same, and

Fig. 4 is a section on the line 4.4, of Fig. 2. I

1 designates the ring-rail; 2 the bolsterrail; 3, the lifter-rod and 4 the spindle carrying the bobbin 5.

The lifter-rod 3, is formed with a plurality of parallel longitudinal bearing edges 6, instead of being formed round as usual and in the specific form illustrated these edges 6, are produced by forming the rod 3 triangular in cross section.

7, designates the lifter-rod bushing the bore of which is formed many sided as indicated at 8; the bore being triangular in the specific form shown. a

The bore of the bushing 7 is larger than the diameter of the rod 3, and the edges 6 of the rod engage the three flat Walls 8 of the bushing 7, as shown in Fig. 4, so that three clearance openings are formed for the free passage of lint therethrough. The spindle 3 has a plurality of very narrow bearing edges 6. as before stated. which greatly reduces the friction between the spindle and its bushing and also prevent sticking of the lifter-rod in the bushing which occurs where the engaging surfaces of the rod and bushing are turning or twistingof the lifter-rod 3, in its bushing 7, the longitudinal working edges 6 of the rod are flat instead of sharp; that is the apices of the triangles will be truncated or flattened and will be about an eighth of an inch wide where they engage theflat faces 8 of the bushing 7.

The invention is not restricted to the particular form of polygonal engaging surfaces between the lifting rod and the bore of the bushing so long as the friction reducing means and lint clearance openings are produced and rotation of the rod in the bushing is prevented.

The term polygonal as used in the claims is therefore to be given the broadest interpretation.

Having thus described the invention, what is claimed as new is z 1. The combination with a lifter-rod, of a bearing therefor having a bore receiving the 'rod, there being engaging surfaces formed at intervals between the rod and the bore and opposed clearance spaces between said engaging surfaces.

2. The combination with a lifter-rod having a plurality of parallel bearing edges and non-engaging surfaces therebetween, of

a bearing having a bore engaged by said bearing edges and provided with clearance spaces opposed to the non-engaging surfaces of the lifter-rod.

3. The combination with a lifter-rod polygonal in cross section to form longitudinal bearing edges and intervening non-engagin surfaces, .of a bearing having a polygona bore, the flat walls of which are engaged by said longitudinal bearing edges and the intervening angular clearance spaces being opposed to the corresponding non-engaging surfaces, formed on the lifter-rod.

4:. The combination with a bushing adapted to be inserted in the usual bolster rail opening and provided with a supporting shoulder to engage the upper side of said rail, of a lifter-rod working in said bushing, engaging surfaces being formed at intervals between the rod and the bore of the bushing; clearance spaces being formed between said engaging surfaces within the bushin 5. The combination with a lifting rod polygonal in cross section, of a bushing having its bore polygonal in cross section; the parallel working edges of the rod. engaging the flatwalls of the bore interm diate of the angles thereof; whereby clearance spaces for tation of the rod is prevented and clearance lint are provided by the opposed non-engagspaces for lint are provided. .ing resurfaces ,jOfQbQthTthGTFQ -ia d bush ng i 1 tes impny w e eo Wemfi' our sig bore. tures in the presence of two Witnesses.

5 6. The combination-Within, liftingrod tri- V .v y it n T angular in cross section and having its -angl'esifiattened, *Qfgfii bushing having-a triangular bore; the flattenedmerking edges qf Witnesses:

the rod engaging the flat walls 615 the bush- "J. C. CROWELL,

loving between the anglesthereof; whereby ro- T. J. PAYNE. 

